#include "contacts.pb.h"

int main()
{
    std::string people_str;
    {
        // 对一个联系人的信息使用 PB 进行序列化, 并将结果打印出来
        contacts::PeopleInfo people;
        people.set_name("张三");
        people.set_age(20);
        if (!people.SerializeToString(&people_str)) {
            std::cerr << "序列化联系人失败!" << std::endl;
            return -1;
        }
        std::cout << "序列化成功, 结果: " << people_str << std::endl;
    }

    {
        contacts::PeopleInfo people;
        if (!people.ParseFromString(people_str)) {
            std::cerr << "反序列化联系人失败!" << std::endl;
            return -1;
        }
        std::cout << "反序列化成功!" << std::endl
                  << "姓名: " << people.name() << std::endl
                  << "年龄: " << people.age() << std::endl;
    }

    return 0;
}